l)ij>tera Nematocera from S/ iuierjin. 201 



small species with a markedly sinuous vein Cu^, with the 

 base of the fork well beyond the cross-vein and without 

 macrotrichia on the wing-membrane. 



Cainptocladius lonfficosta, sp. n. 



Bear Island: Walrus IJay, S.E. of island, 11 & 

 22. vi. 1U.21; 20-50 ft., under stones in limestone gully 

 quarter mile inland, and at tlowers of Saxifraga oppositi- 

 Jolia ; 14 ? . 



? . Entirely black, including tlie pleurae and halteres ; 

 head and thorax slightly dusted with grey. Eyes entire, 

 distinctly and rather densely hairy. Palpi with the last 

 three segments snbcqu;il, the terminal only slightly longer 

 than the penultimate, and not more than five or six times as 

 long as broad. Antcnnie 6-segmented, segment 2 much 

 constricted near the base, from the constriction outwards 

 similar in shape to segments 3-5, which are somewhat Mask- 

 shaped , and about twice as long as broad ; segment 6 not 

 verticillate, not quite as long as segments 4- and 5 combined, 

 with numerous short sense-bristles, especially on the apical 

 half. Mesonotum without scales, and with only a few hairs 

 between the slightly shining stripes. Lameihe of ovipositor 

 small, black, rounded, fringed posteriorly with short hair. 

 Legs with moderately short pubescence. Last two tarsal 

 segments subequal, the filth very slightly longer than the 

 fourth, which is about 2*5 times as long as broad. 

 First segment of front tarsi a little over half as long as the 

 tibiae. Empodia about as long as the claws. Wings 

 whitish, membrane bare, with a vacuolated appearance under 

 a magnification of 80. Costa reaching almost to tip of the 

 wing, and more than half the distance from the tip of R^ to 

 that of M. /i'l not quite half as long as R^, which is approxi- 

 mated to the costa apical ly. Bn "inch nearer R^ than R^. 

 Base of fork of Cu distant from the base of M by nearly 

 three times the length of the cross-vein. Anal lobe obtuse- 

 angled, not well marked. Wing-length 2-cJ-2*8 mm. ; body- 

 length about 2 mm. 



In many respects this seems to be very similar to Kieffer's 

 Trichocladius spitzberycnsis, but diflVrs in the dark i)leur;c, 

 shorter palpi, and longer fourth tarsal segment. It is just 

 possible that it may be the female of C jlexinervis, Kiett". 



Camptocladius curvinervis, \ar. polaris (Kieffor). 



Si'iTsBHRGEN : Bruce City, head of Klaas Billen Bay, 

 14. viii. 1021 ; on hut window-pane; 1 ?. Cape Boheman, 



